Roofing material



1 l l/ A g i., Il u Feb. 2U 19230 atented heb. ll I2..

THOMAS 1B. LJEHON, OJF CHICAGO, ILLINOIS, ASSIGNOR TO THE LJEHONCOMIANY, OF CHICAGO, ILLINOIS, :A CORPORATION OF ILLINOIS.

ROOJFING MATERIAL.

Application led April 25, 192.1. Serial No. 464,103.

To all whom it may concern.'

Be it known that I, 'IHoMAs B. LEHON, a citizen of the United States,and a resident of Chicago, inthe county of Cook and State of Illinois,have invented certain new and useful Improvements in Roofing Materials,of which the following is a specification, reference being had to theaccompanying drawings.

My invention' relatesto improvements in that type of roofing that ismade in sheet form and used either in long strips of the width of theoriginal sheet or in small sheets or pieces cut into the sh-ape and sizeof shin- I@ gles and laid in overlapping relation in the way of anordinary shingled roof. Such roofing material as now very generally madecomprises a base of fibrous material to which asphalt or similar plasticmaterial is applied a@ while hot and forced into and upon the fabricbase by suitable rollers, and having upon one surface of the sheet soIformed a coating of comminuted or granular material, such as rock orslate, which is pressed upon thesheet at and adheres thereto. Otherroofing material of this same general type is made by employing asbestoslibre and cement rolled into sheet shape .while in a heated condition. Ihave found that by having imparted to such au roofing materials atintervals a series of corrugations that give to the material alternatechannels and ridges a roofing is provided Ill that is superior in manyrespects to thetype.

of roofing referred to that is now in general It use, all asishereinafter more particularly pointed out. l

In the accompanying drawing,- Fig. l is a perspective view of a roll offlexible roofing embodying my improvement; Fig. 2 is a perspective viewof a piece of such roofing and of a size designed to be used as ashingle; p

Fig. 3 is an enlarged plan view of a por; tion of a shingle coated withgranular maat terial and provided with corrugations there- 1n; and

Fig. 4 is an enlarged 'cross-sectional view through the shingle shown inFig. 3.

Referring to the.- several figures of the te drawing, A represents aroll of flexible roofing in which the lines extending longitudinallythereof are intended to indicate the corrugations that are shown moreclearly in Fig. 4 wherein, is shown an enlarged sectional view of apiece out from such a roll and designed to be used as a separateshingle. A complete shingle is shown in Fig. 2 and is designated as B,as are also the enlargedI portions of such shingle that .are shown inFigs. 3 and 4.

The shingle B, as shown, comprises a base a of fibrous material that, asusual, has been impregnated and coatedwith asphalt or similar plasticmaterial while heated and upon the surface of which, while the saidcoating material was hot, has been preed so as to adhere therto aquantity of granulated material such as rock, slate, or other similarsuitable substance. To this granular-coated roofing so formed, I imparta plurality of 7o corrugations, which is preferably done while the longsheet of material is in a warm and plastic condition and by passing suchsheet between a pair of fluted rolls. Each of the ridges that is thusformed in the granularcoated or upper surface is indicated by c and thecorresponding ridges that appear on the-other surface are indicated byd. While any desired form of corrugation may be thus impressed upon thematerial, I have shown a form wherein each ridge has, as is clearlyshown in Fig. 4,a short and comparatively steep incline on one of itssideswhile the other side is comparatively long and slopes verygradually toward and merges into the short, steep side wall of the nextridge. So forming ythe two sides of each ridge, while still preservingsuitable channels or gutters on the face of the material to facilitatethe carrying away of rain-water, will present a more aestheticappearance to the roof as a whole when viewed from a distance owing tothe manner in which shadow effects are produced by such ridges, andhence I prefer such formation of the ridges.

A` piece of roofing material corrugated as shown and described will, ofcourse, be laid so that the corrugations extend at an angle to the eavesof a roof-and will, therefore,` provide a plurality of channels forconducting rain-water offv of the roof, but another and very importantobject attained is the imparting' of strength or rigidity to themateria] so that it better resists any tendencyespecially when in theform of a shingleto turn or warp, as frequently is the case withshingles of this type as heretofore constructed. *A n, i

A roofing sheet or shingle comprising a uniformly corrugated layer ofplastic material Witha layer of grit embedded in and covering the layerof corrugated plastic material is no-t claimed broadly herein for thereason that such broad claims have been made in my copending applicationfor patent on roofing material, Serial No. 559,327, iled May 8, 1922.

What I claim as my invention and desire to secure by Letters Patent, is-

1. A roofing member comprising fibrous and plastic materials -associatedtogether and having a series of corrugations formed in its Jfront andback surfaces.

2. A lexible roofing member coated on one of its facesvvith granularmaterial, the body THOMAS B. LEHON.

